I want to unify my workspaces to switch on both monitors.
As found online, there’s a Gnome tweak for that.
However I do not have the category ‘Workspaces’ in my gnome tweaks application. It should be below ‘Windows’.
No. Fedora ships Gnome as the developers create it, without any modifications. This particular setting would’ve been moved out of gnome-tweaks into the main Gnome settings at some point. So that’s where we find it now.